Patterned magnetic traps for magnetophoretic assembly and actuation of microrotor pumps

被引：18

作者：

Henighan, T. ^{[1
]}

Giglio, D. ^{[1
]}

Chen, A. ^{[1
]}

Vieira, G. ^{[1
]}

Sooryakumar, R. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 10期

关键词：

MICROFLUIDICS; MANIPULATION; DEVICES;

D O I：

10.1063/1.3562037

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a microscopic magnetic rotor pump for fluidic channels whose components are assembled in situ and powered by weak external magnetic fields (<150 Oe). A platform of patterned Permalloy microdisks and microcavities provided for the transport, trapping, and rotation of the superparamagnetic spherical microrotors. Parallel actuation of several rotors without direct physical link to external energy sources, tunable rotation speeds, and reversible drive torques offers significant advantages over macroscopic techniques to control flow within microfluidic devices. The effectiveness of trapping and transporting magnetic nanoparticles by the disks illustrate scalability to smaller, submicrometer sized devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3562037]

引用

页数：3

共 15 条

[1]

[Anonymous], 1999, CLASSICAL ELECTRODYN

[2] Field-mediated self-assembly and actuation of highly parallel microfluidic devices [J].